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GEOPHYSICAL RESEARCH LETTERS, VOL. 29, NO. 10, 1387, doi:10.1029/2002GL014825, 2002

Analysis of adjustments to the United States Historical Climatology Network (USHCN) temperature database

Robert C. Balling Jr.

Office of Climatology, Arizona State University, Tempe, Arizona, USA


Craig D. Idso

Office of Climatology, Arizona State University, Tempe, Arizona, USA


Abstract

The United States Historical Climatology Network (USHCN) temperature database is commonly used in regional climate analyses. However, the raw temperature records in the USHCN are adjusted substantially to account for a variety of potential contaminants to the dataset. We compare the USHCN data with several surface and upper-air datasets and show that the effects of the various USHCN adjustments produce a significantly more positive, and likely spurious, trend in the USHCN data.

Published 21 May 2002.

Index Terms: 3309 Meteorology and Atmospheric Dynamics: Climatology (1620); 3399 Meteorology and Atmospheric Dynamics: General or miscellaneous; 1610 Global Change: Atmosphere (0315, 0325).

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Citation: Balling, R. C., Jr., and C. D. Idso (2002), Analysis of adjustments to the United States Historical Climatology Network (USHCN) temperature database, Geophys. Res. Lett., 29(10), 1387, doi:10.1029/2002GL014825.